Osadolor, Owens O, Obehi O Osadolor, Aisosa J Osadolor, and Azuka P Ekpeti. “Effectiveness of Vaccines and Barriers Against Effective Cold Chain Systems”. Mediscope 10, no. 1 (April 11, 2023): 38–41. Accessed December 21, 2025. https://www.banglajol.info/index.php/MEDISCOPE/article/view/65411.